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Mercedes-Benz GLC350e roof panel may detach while driving

NHTSA campaign 21V197000 · Reported 2021-03-19 · Mercedes-Benz USA, LLC

high How serious is it? About this label

Serious — a panel coming off at speed can cause a crash for you or someone behind you, and while the notice does not tell owners to stop driving, you should get the repair done as soon as a dealer can take the car.

What's wrong, in plain English

On some Mercedes-Benz vehicles with a panoramic sunroof, the strip of roof between the windshield and the sunroof was glued back on during an earlier repair. That glue may not have been applied correctly, so the bond can weaken over time. If it lets go, the panel can peel off the car while you are driving and land on the road, where it becomes a hazard for you and for the drivers behind you.

What you should do

1. Enter your VIN at nhtsa.gov/recalls to confirm your vehicle is included in campaign 21V197000.
2. Call your Mercedes-Benz dealer to book the repair, or reach MBUSA customer service at 1-800-367-6372.
3. The dealer removes the old panel and bonds a new one in place, and the repair is free.

Affected vehicles (1)

Who to contact

Mercedes-Benz — official Mercedes-Benz recall lookup

Customer service: 1-800-367-6372

Any franchised dealer for the brand can do the repair. Phone numbers are taken from manufacturer sites and recent NHTSA notices; if one has changed, the number in your own recall letter is the one to use.

The bigger picture

Official notice

Component
STRUCTURE:BODY:ROOF AND PILLARS
Summary
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2020 C300 Coupe, C43 Coupe AMG, C43 AMG, 2015-2020 C300, GLA250, 2016-2018 C350e, CLA45 Coupe AMG, 2015 C400, S65 AMG, 2015-2019 C63 AMG, 2016 C450, 2015-2016 GLA45 AMG, S600, 2016-2020 GLC300, 2017-2019 GLC43 AMG, GLE43 Coupe AMG, 2014-2019 CLA250 Coupe, 2014-2015 CLA45 AMG, 2018 GLC63 AMG, 2014-2017 S550, 2018-2020 S450, 2016-2019 GLE63 Coupe AMG, 2016 GLE450 Coupe, 2014-2020 S63 AMG, 2018-2019 S560, and 2019 GLC350e vehicles equipped with a panoramic sunroof. The front roof panel located between the windshield and the panoramic sunroof may not have been bonded correctly to the vehicle during a prior repair.
Safety risk
The adhesive bonding of the front panel might deteriorate, possibly causing the front panel to detach from the vehicle and become a road hazard, increasing the risk of a crash.
Remedy
Mercedes-Benz dealer will remove the bonded panel and will install a new front panel by following the detailed repair instructions and using the approved primer, cleaner and adhesive, free of charge. Owner notification letters were mailed on September 3, 2021 and October 26, 2021. Owners may contact MBUSA customer service at 1-800-367-6372.

Verify your specific vehicle by VIN at nhtsa.gov. Recall repairs are free of charge by law.